Linux / Unix: Find Out DNS Server IP Address / Names

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Install, Configure, and Maintain Linux DNS Server
Adam 4 All of which Google's DNS 8. Line 3 is the refresh rate in seconds. In CentOS, you can use: This worked previous to the way above:.

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I would suggest to mention that file is a link and dynamically generated for systems using resovconf like Ubuntu. I've seen this answer millions of times and until today is that I think it is correct, because I understand now that it is actually a dynamically generated file. Here's how I do it: Lonniebiz 1, 4 12 On Debian this requires the network-manager package. Command 'dm-tool' from package 'lightdm' main nm-tool: I've updated the answer to reflect what's working for me in I think you can also query DNS and it will show you what server returned the result.

Freiheit 4, 1 10 On Debian this requires the dnsutils package. In the example below, it shows that the DNS server used is at 8. Mads Skjern 1 3 Sam 3 2. On a recent Ubuntu, this again points to the local cache server In CentOS 7 it quits with error, but it is a vm so I did nslookup google. On systems running systemd use: G32RW 1 5.

Says Failed to get global data: This should return information on each ethernet device connected. Each device's IP address is listed after "inet". If you're not sure which device you're looking for, you most likely want "eth0", the first ethernet adapter recognized. To only view information for eth0, enter ip addr show eth0. This should display a large block of network information.

If you get a message telling you that ifconfig is deprecated, switch to the instructions for Enter a Terminal Command in recent Linux builds above. Find the IP address for each device listed after "inet adr". Include your email address to get a message when this question is answered. Top level domains TLDs are divided into categories based on geographical or functional aspects. Only the name servers for mail. It is used on most DNS servers worldwide.

I recommend you to review Linux syslog server. Like the domain google. Primary and secondary are considered equally authoritative in their answers, unlike caching server. It is necessary but not required to have a caching zone, so you decrease the queries on the DNS server. The first line contains a dot which is the root name servers.

You can get the latest root name server from http: Now you should type the content of the files referenced like likegeeks. These files contain the DNS record types for each zone with some options. So what are those DNS record types and how they are written? The first line starts with the domain example. You may notice there is no sign and it is replaced with the period, and there is a trailing period. Line 2 is the serial number which is used to tell the name server about the file update time, so if you make a change to the zone data, you have to increment this number.

Line 3 is the refresh rate in seconds. How often secondary DNS servers should query the primary server to check for updates. Line 4 is the retry rate in seconds. This is the time that the secondary DNS server takes for waiting after trying to connect to the primary DNS server and cannot reach it. The specified number of retry seconds. Line 5 is the expire directive. If the secondary server cannot connect to the primary server for an update, it should discard the value after the specified number of seconds.

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How can I check which DNS server am I using (in Linux)? I am using network manager and a wired connection to my university's LAN. What DNS servers am I using? Ask Question. You can also tell dig to query a specific DNS server by using dig @server_ip. share | improve this answer. edited Jan 18 at answered Jan 12 '12 . Linux / Unix: Find Out DNS Server IP Address / Names last updated October 3, in Categories FAQ, Linux, The author is the creator of nixCraft and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Find Out DNS Server IP Address Used By My Router? Linux Static IP Address. Is there a command to list dns servers used by my system? I tried cat /etc/ should show your DNS servers. You may not modify the directly with Ubuntu Unix & Linux; Ask Different (Apple) WordPress Development; Geographic Information Systems;.